Optimized Gradient Waveforms for Spiral Scanning

Overview

Journal Magn Reson Med

Publisher Wiley

Specialty Radiology

Date 1995 Aug 1

PMID 7476073

Citations 22

Authors

K F King

T K Foo

C R Crawford

Affiliations

Soon will be listed here.

Abstract

Spiral scanning gradient waveforms can be optimized with respect to blurring from off-resonance effects by minimizing the readout time. This is achieved by maximizing the gradient amplitude during the scan so that the edge of k-space is reached as quickly as possible. Gradient hardware constraints are incorporated by considering a circuit model for the gradient coil and amplifier. The optimized gradient waveforms are determined by a set of coupled differential equations. The resulting solutions have shorter readout time than solutions that do not consider the circuit model.

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